Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Polar Coordinates: Problem Solving

Polar Coordinates: Problem Solving

Directional radiation patterns are central to antenna analysis, as they illustrate how signal strength varies with direction. These patterns are often modeled using polar plots, where the radial distance from the origin represents signal intensity at a given angle. A commonly used idealized form is the four-lobed rose curve, which captures the concept of directional beams in a simplified mathematical form.The four-lobed rose curve, described by r = cos⁡(2θ), features four symmetric lobes, each...

Parallel Resonance

Parallel Resonance

The parallel RLC circuit is an arrangement where the resistor (R), inductor (L), and capacitor (C) are all connected to the same nodes and, as a result, share the same voltage across them. The parallel RLC circuit is analyzed in terms of admittance (Y), which reflects the ease with which current can flow. The admittance is given by:

Surface Area Calculations

Surface Area Calculations

Surface area calculations for a graph z = f(x, y) are fundamental in engineering applications involving curved structures such as satellite dishes. A parabolic dish reflects communication signals efficiently, but engineers must determine its exact curved surface area to estimate coating materials, fabrication costs, and structural requirements. Since the rim of the dish forms a circular boundary, the surface area is calculated over a circular domain in the xy-plane.Parametric Representation of...

Characteristics of Series Resonant Circuit

Characteristics of Series Resonant Circuit

Series resonance occurs in a circuit containing inductive (L), capacitive (C), and resistive (R) elements connected sequentially. At the resonance frequency, the inductive and capacitive reactances are equal in magnitude but opposite in sign, effectively canceling each other. This causes the circuit's impedance is minimal, primarily determined by the resistance R. The resonant frequency of an RLC circuit is defined as:

Radiation: Applications

Radiation: Applications

The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...

Mesh Analysis for AC Circuits

Mesh Analysis for AC Circuits

In the domain of radio communication, the significance of impedance matching must be considered. It is crucial to ensure the efficient transmission of signals between radio transmitters and receivers. Achieving this balance involves using impedance-matching circuits, with one fundamental configuration comprising a resistor, capacitor, and inductor.
The process of harmonizing these impedances begins with a clear understanding of the input and output signals. Once these signals are known, the...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Kirigami-Cut Pattern Designs for the Enhancement of Sensing Performance Induced by Programmable Out-of-Plane Deformation.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Same author

Quantifying Adsorption and Transport in Gram-Positive Cell Walls by Second Harmonic Light Scattering.

Biophysical journal·2026

Same author

The effects of social story interventions on individuals with Autism Spectrum Disorders and influencing factors: a meta-analysis of single-case experimental studies.

Frontiers in psychology·2026

Same author

Low-intensity stimulation drives macrophage efferocytosis via ACSL4 lipid remodeling and CCL9-CCR1 signaling for tendon-bone healing.

Science advances·2026

Same author

Pulmonary artery sling repair via left thoracotomy.

Cardiology in the young·2026

Same author

Prognostic value of tertiary lymphoid structures in locally advanced esophageal squamous cell carcinoma treated with neoadjuvant chemoimmunotherapy: a retrospective study.

Journal of cardiothoracic surgery·2026

Search research articles

Related Experiment Video

Updated: Jun 27, 2026

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

Low-Profile Metasurface Antenna for Broadband RCS Reduction and Omnidirectional Radiation.

Liqiu Hu¹, Sijia Li¹, Kefeng Ji¹

¹Information and Navigation College, Air Force Engineering University, Xi'an 710077, China.

Materials (Basel, Switzerland)

|June 26, 2026

Summary

This study presents a novel low-profile, omnidirectional metasurface antenna designed for reduced radar cross-section (RCS). The antenna achieves wideband impedance matching and significant broadband RCS reduction, making it suitable for stealth applications.

Keywords:

F-shaped feeding structure Pancharatnam-Berry phase theory low-RCS low-profile omnidirectional radiation

More Related Videos

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

Related Experiment Videos

Last Updated: Jun 27, 2026

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

Area of Science:

Electromagnetics and Antenna Engineering
Metamaterials and Nanophotonics
Radar Systems and Signal Processing

Background:

Traditional antennas often exhibit significant radar cross-section (RCS), compromising stealth capabilities.
Omnidirectional antennas are crucial for communication systems requiring 360-degree coverage.
Metasurfaces offer unique electromagnetic properties for antenna and RCS reduction applications.

Purpose of the Study:

To investigate and propose a low-profile, omnidirectional metasurface antenna with inherent low RCS.
To achieve wideband impedance matching and broadband RCS reduction simultaneously.
To validate the antenna's performance through fabrication and experimental measurements.

Main Methods:

Design of a multi-layer metasurface antenna incorporating a circular patch, dielectric substrate, and ground plane.
Integration of a polarization conversion metasurface (PCM) for RCS reduction.
Utilization of an F-shaped feeding structure for wideband impedance matching.
Fabrication of a prototype antenna and measurement in an anechoic chamber.

Main Results:

The fabricated antenna achieved a low profile of 0.051λ₀.
A 10 dB impedance bandwidth of 2.11-2.62 GHz (21.56% fractional bandwidth) was demonstrated.
Significant broadband RCS reduction was observed from 7.05 to 16.96 GHz, with a maximum reduction of -28 dB and an average of -12.51 dB.

Conclusions:

The proposed metasurface antenna effectively combines omnidirectionality, low profile, and broadband RCS reduction.
The integration of a polarization conversion metasurface is a viable strategy for enhancing stealth performance.
Experimental validation confirms the antenna's potential for advanced radar and communication systems.